Saint-Nazaire weather in May 2025

Expect 18°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Saint-Nazaire in May. Check more long-term weather averages for Saint-Nazaire in May before you book your next holiday to France in 2025/2026.

  • 18°C maximum daytime temperature in May in Saint-Nazaire18
    18°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in May in Saint-Nazaire16
    16 days with some rainfall
  • 9°C minimum night-time temperature in May in Saint-Nazaire9
    9°C min night temperature
  • 15 hours of daylight per day in May in Saint-Nazaire15
    15 hours of daylight per day
  • No heat & humidity in May in Saint-Nazaire0
    No heat & humidity
  • 66 mm monthly rainfall in May in Saint-Nazaire66
    66 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Saint-Nazaire6
    6 (High) UV index
  • 14°C sea temperature in May in Saint-Nazaire14
    14°C sea temperature

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Saint-Nazaire by month

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The May weather guide for France (Saint-Nazaire) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Saint-Nazaire in May?

Daytime temperatures usually reach 18°C in Saint-Nazaire in May, falling to 9°C at night.

How sunny is it in Saint-Nazaire in May?

There are normally 7 hours of bright sunshine each day in Saint-Nazaire in May - that's 45% of daylight hours.

How warm is the sea around Saint-Nazaire in May?

The average sea temperature around Saint-Nazaire in May is 14°C.

Does it rain in Saint-Nazaire in May?

There are usually 16 days with some rain in Saint-Nazaire in May and the average monthly rainfall is 66mm.

Saint-Nazaire May sunrise & sunset times

Browse the sunrise and sunset times for Saint-Nazaire in May 2025. Select a month to view Saint-Nazaire sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:52 20:20
Friday, 16th May 2025 05:31 20:40
Saturday, 31st May 2025 05:17 20:57

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